CVE-2023-22849 : Exploit Details and Defense Strategies

This CVE involves an improper neutralization of input during web page generation ('Cross-site Scripting') vulnerability in Apache Sling App CMS version 1.1.4 and prior. This vulnerability may allow an authenticated remote attacker to perform a reflected cross-site scripting (XSS) attack, impacting multiple features. It was reported by Eugene Lim and Sng Jay Kai from GOVTECH.

Understanding CVE-2023-22849

This section will cover what CVE-2023-22849 entails in terms of its description, impact, technical details, and mitigation steps.

What is CVE-2023-22849?

CVE-2023-22849 is an improper neutralization of input during web page generation ('Cross-site Scripting') vulnerability found in Apache Sling App CMS versions 1.1.4 and prior. It poses a risk of enabling an authenticated remote attacker to execute a reflected XSS attack in various features of the software.

The Impact of CVE-2023-22849

The impact of CVE-2023-22849 is significant as it allows attackers to inject malicious scripts into web pages viewed by other users, potentially leading to unauthorized access, data theft, or other malicious activities. This vulnerability can compromise the confidentiality, integrity, and availability of the affected systems.

Technical Details of CVE-2023-22849

In this section, we will delve into the vulnerability description, affected systems and versions, as well as the exploitation mechanism.

Vulnerability Description

The CVE-2023-22849 vulnerability is classified as an improper neutralization of input during web page generation ('Cross-site Scripting') issue (CWE-79) in Apache Sling App CMS. Attackers can exploit this vulnerability to execute XSS attacks in various aspects of the software.

Affected Systems and Versions

The affected system is Apache Sling App CMS version 1.1.4 and earlier. Users of these versions are at risk of exploitation if proper remediation steps are not taken.

Exploitation Mechanism

Attackers need to leverage the vulnerability in Apache Sling App CMS version 1.1.4 and prior to inject and execute malicious scripts through web pages, potentially impacting users who interact with the compromised content.

Mitigation and Prevention

To address CVE-2023-22849, organizations and users are advised to take immediate steps to mitigate the risk and implement long-term security practices. Patching and updating the affected software is crucial in preventing exploitation.

Immediate Steps to Take

Affected users should upgrade to Apache Sling App CMS version 1.1.6 or higher as recommended by the vendor to mitigate the vulnerability and protect against XSS attacks.

Long-Term Security Practices

Implementing secure coding practices, conducting regular security assessments, and educating users about safe browsing habits are essential for maintaining a secure environment and mitigating XSS vulnerabilities.

Patching and Updates

Regularly monitor vendor advisories and security updates to stay informed about patches and fixes for known vulnerabilities like CVE-2023-22849. Promptly applying updates can help prevent exploitation and enhance the overall security posture of the systems.